ABAP Select data from SAP table CPMRPSC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPMRPSC table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CPMRPSC. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CPMRPSC table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CPMRPSC TYPE STANDARD TABLE OF CPMRPSC,
      WA_CPMRPSC TYPE CPMRPSC,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CPMRPSC> TYPE CPMRPSC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CPMRPSC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CPMRPSC
  INTO TABLE IT_CPMRPSC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPMRPSC
*  INTO TABLE @DATA(IT_CPMRPSC2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CPMRPSC INDEX 1 INTO DATA(WA_CPMRPSC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CPMRPSC ASSIGNING <CPMRPSC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPMRPSC>-MANDT = 1.
<CPMRPSC>-PMRPSIMULATION = 1.
<CPMRPSC>-TOPLEVELDEMANDINTERNALID = 1.
<CPMRPSC>-BUCKETINTERNALID = 1.
<CPMRPSC>-PRODUCT = 1.

ENDLOOP.

LOOP AT IT_CPMRPSC INTO WA_CPMRPSC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPMRPSC-PLANT, sy-vline,
  WA_CPMRPSC-UNITOFMEASURE, sy-vline,
  WA_CPMRPSC-PMRPSIMULATIONDESCRIPTION, sy-vline,
  WA_CPMRPSC-PMRPREFERENCEPLAN, sy-vline,
  WA_CPMRPSC-PMRPREFERENCEPLANDESCRIPTION, sy-vline,
  WA_CPMRPSC-PMRPSIMULATIONSTATUSNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPMRPSC you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CPMRPSC TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CPMRPSC INTO WA_CPMRPSC.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CPMRPSC-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPMRPSC-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPMRPSC-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPMRPSC-UNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DELIVERYPERFORMANCEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CPMRPSC-DELIVERYPERFORMANCEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPMRPSC-DELIVERYPERFORMANCEUNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CPMRPSC_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
TOPLEVELDEMANDINTERNALID TYPE STRING,
BUCKETINTERNALID TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
UNITOFMEASURE TYPE STRING,
PMRPSIMULATIONDESCRIPTION TYPE STRING,
PMRPREFERENCEPLAN TYPE STRING,
PMRPREFERENCEPLANDESCRIPTION TYPE STRING,
PMRPSIMULATIONSTATUSNAME TYPE STRING,
PMRPSIMULATIONSTATUS TYPE STRING,
SIMULATIONSTATUSCRITICALITY TYPE STRING,
DELIVERYPERFORMANCETREND TYPE STRING,
PREVIOUSNUMBEROFCAPACITYISSUES TYPE STRING,
CAPACITYCRITICALITY TYPE STRING,
CAPACITYISSUETREND TYPE STRING,
PREVIOUSUNDRDELIVRATIOINPCT TYPE STRING,
DELIVERYPERFORMANCECRITICALITY TYPE STRING,
DELIVERYPERFORMANCEUNIT TYPE STRING,
PREVNMBROFPRODSWITHMISSINGSOS TYPE STRING,
INVALIDSRCEOFSUPCRITICALITY TYPE STRING,
INVALIDSOURCEOFSUPPLYTREND TYPE STRING,
PMRPPREVNMBROFCONSTRAINTISSUES TYPE STRING,
CONSTRAINTISSUESCRITICALITY TYPE STRING,
CONSTRAINTISSUESTREND TYPE STRING,
PMRPNUMBEROFBUCKETS TYPE STRING,
NUMBEROFCAPACITYISSUES TYPE STRING,
TOPLVLDMNDUNDRDELIVRATIOINPCT TYPE STRING,
NUMBEROFPRODUCTSWITHMISSINGSOS TYPE STRING,
PMRPNUMBEROFCONSTRAINTISSUES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPMRPSC_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CPMRPSC_STR-MANDT sy-vline 
WA_CPMRPSC_STR-PMRPSIMULATION sy-vline 
WA_CPMRPSC_STR-TOPLEVELDEMANDINTERNALID sy-vline 
WA_CPMRPSC_STR-BUCKETINTERNALID sy-vline 
WA_CPMRPSC_STR-PRODUCT sy-vline 
WA_CPMRPSC_STR-PLANT sy-vline 
WA_CPMRPSC_STR-UNITOFMEASURE sy-vline 
WA_CPMRPSC_STR-PMRPSIMULATIONDESCRIPTION sy-vline 
WA_CPMRPSC_STR-PMRPREFERENCEPLAN sy-vline 
WA_CPMRPSC_STR-PMRPREFERENCEPLANDESCRIPTION sy-vline 
WA_CPMRPSC_STR-PMRPSIMULATIONSTATUSNAME sy-vline 
WA_CPMRPSC_STR-PMRPSIMULATIONSTATUS sy-vline 
WA_CPMRPSC_STR-SIMULATIONSTATUSCRITICALITY sy-vline 
WA_CPMRPSC_STR-DELIVERYPERFORMANCETREND sy-vline 
WA_CPMRPSC_STR-PREVIOUSNUMBEROFCAPACITYISSUES sy-vline 
WA_CPMRPSC_STR-CAPACITYCRITICALITY sy-vline 
WA_CPMRPSC_STR-CAPACITYISSUETREND sy-vline 
WA_CPMRPSC_STR-PREVIOUSUNDRDELIVRATIOINPCT sy-vline 
WA_CPMRPSC_STR-DELIVERYPERFORMANCECRITICALITY sy-vline 
WA_CPMRPSC_STR-DELIVERYPERFORMANCEUNIT sy-vline 
WA_CPMRPSC_STR-PREVNMBROFPRODSWITHMISSINGSOS sy-vline 
WA_CPMRPSC_STR-INVALIDSRCEOFSUPCRITICALITY sy-vline 
WA_CPMRPSC_STR-INVALIDSOURCEOFSUPPLYTREND sy-vline 
WA_CPMRPSC_STR-PMRPPREVNMBROFCONSTRAINTISSUES sy-vline 
WA_CPMRPSC_STR-CONSTRAINTISSUESCRITICALITY sy-vline 
WA_CPMRPSC_STR-CONSTRAINTISSUESTREND sy-vline 
WA_CPMRPSC_STR-PMRPNUMBEROFBUCKETS sy-vline 
WA_CPMRPSC_STR-NUMBEROFCAPACITYISSUES sy-vline 
WA_CPMRPSC_STR-TOPLVLDMNDUNDRDELIVRATIOINPCT sy-vline 
WA_CPMRPSC_STR-NUMBEROFPRODUCTSWITHMISSINGSOS sy-vline 
WA_CPMRPSC_STR-PMRPNUMBEROFCONSTRAINTISSUES sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.